PCAP Python Essentials — PE FINAL TEST Exam Answers: Python 2.0

Last Updated on October 18, 2021 by Admin

PCAP Python Essentials — PE FINAL TEST Exam Answers: Python 2.0 _ 2021 2022

1. What is the expected output of the following piece of code?

   x, y, z = 3, 2, 1
   z, y, x= x, y, z
   print(x, y, z)

   • 2 1 3
   • 1 2 2
   • 1 2 3
   • 3 2 1
     Options 3 is the correct answer.

2. Which of the following functions provided by the os module are available in both Windows and Unix? (Select two answers)

   • mkdir()
   • getgroups()
   • getgid()
   • chdir()

3. What is the expected output of the following code?

   import calendar
   
   c = calendar.Calendar(calendar.SUNDAY)
   
   for weekday in c.iterweekdays():
         print(weekday, end=" ")

   • Su
   • Su Mo Tu We Th Fr Sa
   • 6 0 1 2 3 4 5
   • 7 1 2 3 4 5 6
     Options 3 is the correct answer.

4. Select the true statements. (Select two answers)

   • PyPI is the only exiting Python repository
   • PyPI is short for Python Package Index
   • PyPI is short for Python Package Installer
   • PyPI is one of many existing Python repositories

5. What is true about the following line of code?

   print(len((1), )))

   • The code will output 2
   • The code will output 0
   • The code will output 1
   • The code is erroneous

6. The Exception class contains a property named args – what is it?

   • A list
   • A tuple
   • A string
   • A dictionary

7. What is the expected result of executing the following code?

   Class A:
            def _init_(self):
                  pass
   
            def f(self):
                 return 1
   
            def g():
                 return self.f()
   
   a = A()
   print(a.g())

   • The code will raise an exception
   • The code will output 1
   • The code will output 0
   • The code will output True

8. What is the expected result of executing the following code?

   class A:
           pass
   class B:
           pass
   class C(A, B):
          pass
   
   print(issubclass(C, A) and issubclass(C, B))

   • The code will print an empty line
   • The code will raise an exception
   • The code will print True
   • The code will print False

9. What is the expected output of the following code?

   t = (1, )
   t = t[0] + t[0]
   print(t)

   • 2
   • (1, 1)
   • (1,)
   • 1
     Options 1 is the correct answer.

10. What is the sys.stdout stream normally associated with?

    • The printer
    • The screen
    • The keyboard
    • A null device
11. How many stars (*) will the following snippet send to the console?

    i = 4
    
    while i > 0 :
             i -= 2
             print("*")
             if i == 2:
                  break
    else:
          print("*")

    • The snippet will enter an infinite loop, constantly printing one * per line
    • zero
    • one 
    • two

12. What is true about the following snippet?

    def fun(d, k, v) :
           d[k] = v
    
    my_dictionary = {}
    print(fun(my_dictionary, '1', 'v'))

    • The code will output v
    • The code is erroneous
    • The code will output 1
    • The code will output None

13. What is the expected output of the following snippet?

    d = {'one': 1, 'three': 3, 'two': 2} 
    for k in sorted(d.values()):
          print(k, end=' ')

    • 1 2 3
    • 2 3 1
    • 3 1 2
    • 3 2 1
      Options 1 is the correct answer.

14. What is the expected behavior of the following piece of code?

    x = 16
    while x > 0: 
              print('*', end='')
              x //=2

    • The code will output *****
    • The code will output *
    • The code will enter an infinite loop
    • The code will output ***

15. What is the expected behavior of the following code?

    x = """
    """
    print(len(x))

    • The code will output 2
    • The code will cause an error
    • The code will output 1
    • The code will output 3

16. What is the name of the directory/folder created by Python used to store pyc files?

    • _cache_
    • _pycfiles_
    • _pycache_
    • _pyc_

17. What is the expected output of the following code?

    my_string_1 = 'Bond'
    my_string_2 = 'James Bond'
    
    print(my_string_1.isalpha(), my_string_2.isalpha()))

    • False False
    • True False
    • False True
    • True True
      Options 2 is the correct answer.

18. The meaning of a keyword argument is determined by its:

    • value only
    • position within the argument list
    • both name and value assigned to it
    • connection with existing variables

19. What is the expected output of the following code, located in the file module.py?

    print(_name_)

    • main
    • module.py
    • _main_
    • _module.py_

20. Which line properly invokes the function defined as below?

    def fun(a, b, c=0):
            # function body

    • fun(1, c=2)
    • fun(0)
    • fun(a=1, b=0, c=0)
    • fun(b=0, b= 0)

21. Which of the following sentences is true about the snippet below?

    str_1 = 'string'
    str_2 = str_1[:]

    • str_1 is longer than str_2
    • str_2 is longer than str_1
    • str_1 and str_2 are different (but equal) strings
    • str_1 and str_2 are different names of the same string

22. What is the expected output of the following code?

    from datetime import timedelta
    delta = timdelta(weeks = 1, days = 7, hours = 11)
    print(delta)

    • 2 weeks, 11:00:00
    • 14 days, 11:00:00
    • 1 week, 7 days, 11 hours
    • 7 days, 11:00:00
      Options 2 is the correct answer.